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Climate change is altering the physiology and phenology of an arctic hibernator.
Chmura, Helen E; Duncan, Cassandra; Burrell, Grace; Barnes, Brian M; Buck, C Loren; Williams, Cory T.
Afiliación
  • Chmura HE; Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
  • Duncan C; Rocky Mountain Research Station, United States Forest Service, Missoula, MT 59801, USA.
  • Burrell G; Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
  • Barnes BM; Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
  • Buck CL; Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
  • Williams CT; Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA.
Science ; 380(6647): 846-849, 2023 05 26.
Article en En | MEDLINE | ID: mdl-37228197
Climate warming is rapid in the Arctic, yet impacts to biological systems are unclear because few long-term studies linking biophysiological processes with environmental conditions exist for this data-poor region. In our study spanning 25 years in the Alaskan Arctic, we demonstrate that climate change is affecting the timing of freeze-thaw cycles in the active layer of permafrost soils and altering the physiology of arctic ground squirrels (Urocitellus parryii). Soil freeze has been delayed and, in response, arctic ground squirrels have delayed when they up-regulate heat production during torpor to prevent freezing. Further, the termination of hibernation in spring has advanced 4 days per decade in females but not males. Continued warming and phenological shifts will alter hibernation energetics, change the seasonal availability of this important prey species, and potentially disrupt intraspecific interactions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sciuridae / Cambio Climático / Hibernación Límite: Animals Idioma: En Revista: Science Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sciuridae / Cambio Climático / Hibernación Límite: Animals Idioma: En Revista: Science Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos